Mobile arm attachment for portable playyards



FIG. 1 is a left side view of the mobile arm attachment for portable playyards showing the design of my invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a mobile arm attachment for portable playyards, as shown and described. 